fix #386

新增示例文件 CopyBuildinManifestOperation

Assets/YooAsset/Runtime/FileSystem/CacheSystem.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: da6402a4b93d31943b26fb99cebc0dfd
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/CacheSystem/CacheFileElement.cs

@@ -0,0 +1,38 @@
+using System.IO;
+
+namespace YooAsset
+{
+    internal class CacheFileElement
+    {
+        public string PackageName { private set; get; }
+        public string BundleGUID { private set; get; }
+        public string FileRootPath { private set; get; }
+        public string DataFilePath { private set; get; }
+        public string InfoFilePath { private set; get; }
+
+        public EFileVerifyResult Result;
+        public string DataFileCRC;
+        public long DataFileSize;
+
+        public CacheFileElement(string packageName, string bundleGUID, string fileRootPath, string dataFilePath, string infoFilePath)
+        {
+            PackageName = packageName;
+            BundleGUID = bundleGUID;
+            FileRootPath = fileRootPath;
+            DataFilePath = dataFilePath;
+            InfoFilePath = infoFilePath;
+        }
+
+        public void DeleteFiles()
+        {
+            try
+            {
+                Directory.Delete(FileRootPath, true);
+            }
+            catch (System.Exception e)
+            {
+                YooLogger.Warning($"Failed to delete cache bundle folder : {e}");
+            }
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/CacheSystem/CacheFileElement.cs.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: d6f813e2460f55e4ba3f54527e6999e3
+guid: 0c361449cdcbd8746ba3fb948798ae1b
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2

Assets/YooAsset/Runtime/FileSystem/CacheSystem/CacheHelper.cs

@@ -0,0 +1,25 @@
+using System;
+using System.IO;
+
+namespace YooAsset
+{
+    internal class CacheHelper
+    {
+        /// <summary>
+        /// 获取默认的缓存根目录
+        /// </summary>
+        public static string GetDefaultCacheRoot()
+        {
+#if UNITY_EDITOR
+            // 注意：为了方便调试查看，编辑器下把存储目录放到项目里。
+            string projectPath = Path.GetDirectoryName(UnityEngine.Application.dataPath);
+            projectPath = PathUtility.RegularPath(projectPath);
+            return PathUtility.Combine(projectPath, YooAssetSettingsData.Setting.DefaultYooFolderName);
+#elif UNITY_STANDALONE
+            return PathUtility.Combine(UnityEngine.Application.dataPath, YooAssetSettingsData.Setting.DefaultYooFolderName);
+#else
+            return PathUtility.Combine(UnityEngine.Application.persistentDataPath, YooAssetSettingsData.Setting.DefaultYooFolderName);	
+#endif
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/CacheSystem/CacheWrapper.cs

@@ -0,0 +1,19 @@
+
+namespace YooAsset
+{
+    internal class CacheWrapper
+    {
+        public string InfoFilePath { private set; get; }
+        public string DataFilePath { private set; get; }
+        public string DataFileCRC { private set; get; }
+        public long DataFileSize { private set; get; }
+        
+        public CacheWrapper(string infoFilePath, string dataFilePath, string dataFileCRC, long dataFileSize)
+        {
+            InfoFilePath = infoFilePath;
+            DataFilePath = dataFilePath;
+            DataFileCRC = dataFileCRC;
+            DataFileSize = dataFileSize;
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/CacheSystem/CacheWrapper.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: ae2176c4ea6fbb3478bf8757def34cd7
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Interface.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: ce78de82d3ce1a841a1e6bad099e0bab
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Interface/ICacheSystem.cs

@@ -0,0 +1,67 @@
+using System.Collections.Generic;
+
+namespace YooAsset
+{
+    internal interface ICacheSystem
+    {
+        /// <summary>
+        /// 获取缓存文件的根目录
+        /// </summary>
+        string GetCacheFileRoot();
+
+        /// <summary>
+        /// 获取临时缓存文件路径
+        /// </summary>
+        string GetTempFilePath(PackageBundle bundle);
+
+        /// <summary>
+        /// 获取数据文件路径
+        /// </summary>
+        string GetDataFilePath(PackageBundle bundle);
+
+        /// <summary>
+        /// 获取信息文件路径
+        /// </summary>
+        string GetInfoFilePath(PackageBundle bundle);
+
+        /// <summary>
+        /// 获取所有缓存文件的GUID
+        /// </summary>
+        List<string> GetAllCachedBundleGUIDs();
+
+        /// <summary>
+        /// 是否记录了文件
+        /// </summary>
+        bool IsRecordFile(string bundleGUID);
+
+        /// <summary>
+        /// 记录指定文件
+        /// </summary>
+        bool RecordFile(string bundleGUID, CacheWrapper wrapper);
+
+        /// <summary>
+        /// 验证缓存文件
+        /// </summary>
+        EFileVerifyResult VerifyCacheFile(PackageBundle bundle);
+
+        /// <summary>
+        /// 写入缓存文件
+        /// </summary>
+        bool WriteCacheFile(PackageBundle bundle, string copyPath);
+
+        /// <summary>
+        /// 删除缓存文件
+        /// </summary>
+        bool DeleteCacheFile(string bundleGUID);
+
+        /// <summary>
+        /// 写入文件信息
+        /// </summary>
+        void WriteInfoFile(string filePath, string dataFileCRC, long dataFileSize);
+
+        /// <summary>
+        /// 读取文件信息
+        /// </summary>
+        void ReadInfoFile(string filePath, out string dataFileCRC, out long dataFileSize);
+    }
+}

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Interface/ICacheSystem.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: f878bc9a12f5d2d40aee754ddfaada86
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 8cae5a51fced527429445b140b8a0843
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/ClearAllCacheFilesOperation.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 
 namespace YooAsset
 {
-    internal sealed class DCFSClearAllBundleFilesOperation : FSClearAllBundleFilesOperation
+    internal sealed class ClearAllCacheFilesOperation : FSClearAllBundleFilesOperation
     {
         private enum ESteps
         {
@@ -13,15 +13,15 @@ namespace YooAsset
             Done,
         }
 
-        private readonly DefaultCacheFileSystem _fileSystem;
+        private readonly ICacheSystem _cacheSystem;
         private List<string> _allBundleGUIDs;
         private int _fileTotalCount = 0;
         private ESteps _steps = ESteps.None;
 
 
-        internal DCFSClearAllBundleFilesOperation(DefaultCacheFileSystem fileSystem)
+        internal ClearAllCacheFilesOperation(ICacheSystem cacheSystem)
         {
-            _fileSystem = fileSystem;
+            _cacheSystem = cacheSystem;
         }
         internal override void InternalOnStart()
         {
@@ -34,7 +34,7 @@ namespace YooAsset
 
             if (_steps == ESteps.GetAllCacheFiles)
             {
-                _allBundleGUIDs = _fileSystem.GetAllCachedBundleGUIDs();
+                _allBundleGUIDs = _cacheSystem.GetAllCachedBundleGUIDs();
                 _fileTotalCount = _allBundleGUIDs.Count;
                 _steps = ESteps.ClearAllCacheFiles;
                 YooLogger.Log($"Found all cache files count : {_fileTotalCount}");
@@ -45,7 +45,7 @@ namespace YooAsset
                 for (int i = _allBundleGUIDs.Count - 1; i >= 0; i--)
                 {
                     string bundleGUID = _allBundleGUIDs[i];
-                    _fileSystem.DeleteCacheFile(bundleGUID);
+                    _cacheSystem.DeleteCacheFile(bundleGUID);
                     _allBundleGUIDs.RemoveAt(i);
                     if (OperationSystem.IsBusy)
                         break;

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/ClearUnusedCacheFilesOperation.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 
 namespace YooAsset
 {
-    internal sealed class DCFSClearUnusedBundleFilesOperation : FSClearUnusedBundleFilesOperation
+    internal sealed class ClearUnusedCacheFilesOperation : FSClearUnusedBundleFilesOperation
     {
         private enum ESteps
         {
@@ -13,16 +13,16 @@ namespace YooAsset
             Done,
         }
 
-        private readonly DefaultCacheFileSystem _fileSystem;
+        private readonly ICacheSystem _cacheSystem;
         private readonly PackageManifest _manifest;
         private List<string> _unusedBundleGUIDs;
         private int _unusedFileTotalCount = 0;
         private ESteps _steps = ESteps.None;
 
-
-        internal DCFSClearUnusedBundleFilesOperation(DefaultCacheFileSystem fileSystem, PackageManifest manifest)
+        
+        internal ClearUnusedCacheFilesOperation(ICacheSystem cacheSystem, PackageManifest manifest)
         {
-            _fileSystem = fileSystem;
+            _cacheSystem = cacheSystem;
             _manifest = manifest;
         }
         internal override void InternalOnStart()
@@ -47,7 +47,7 @@ namespace YooAsset
                 for (int i = _unusedBundleGUIDs.Count - 1; i >= 0; i--)
                 {
                     string bundleGUID = _unusedBundleGUIDs[i];
-                    _fileSystem.DeleteCacheFile(bundleGUID);
+                    _cacheSystem.DeleteCacheFile(bundleGUID);
                     _unusedBundleGUIDs.RemoveAt(i);
                     if (OperationSystem.IsBusy)
                         break;
@@ -68,7 +68,7 @@ namespace YooAsset
 
         private List<string> GetUnusedBundleGUIDs()
         {
-            var allBundleGUIDs = _fileSystem.GetAllCachedBundleGUIDs();
+            var allBundleGUIDs = _cacheSystem.GetAllCachedBundleGUIDs();
             List<string> result = new List<string>(allBundleGUIDs.Count);
             foreach (var bundleGUID in allBundleGUIDs)
             {

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/DownloadNormalFileOperation.cs

@@ -0,0 +1,199 @@
+using System.IO;
+using UnityEngine;
+using UnityEngine.Networking;
+
+namespace YooAsset
+{
+    internal sealed class DownloadNormalFileOperation : DefaultDownloadFileOperation
+    {
+        private readonly IFileSystem _fileSystem;
+        private readonly ICacheSystem _cacheSystem;
+        private VerifyTempFileOperation _verifyOperation;
+        private string _tempFilePath;
+        private ESteps _steps = ESteps.None;
+
+        internal DownloadNormalFileOperation(IFileSystem fileSystem, ICacheSystem cacheSystem, PackageBundle bundle, DownloadParam param) : base(bundle, param)
+        {
+            _fileSystem = fileSystem;
+            _cacheSystem = cacheSystem;
+        }
+        internal override void InternalOnStart()
+        {
+            _tempFilePath = _cacheSystem.GetTempFilePath(Bundle);
+            _steps = ESteps.CheckExists;
+        }
+        internal override void InternalOnUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            // 检测文件是否存在
+            if (_steps == ESteps.CheckExists)
+            {
+                if (_fileSystem.Exists(Bundle))
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    _steps = ESteps.CreateRequest;
+                }
+            }
+
+            // 创建下载器
+            if (_steps == ESteps.CreateRequest)
+            {
+                FileUtility.CreateFileDirectory(_tempFilePath);
+
+                // 删除临时文件
+                if (File.Exists(_tempFilePath))
+                    File.Delete(_tempFilePath);
+
+                // 获取请求地址
+                _requestURL = GetRequestURL();
+
+                // 重置请求
+                ResetRequestFiled();
+
+                // 创建下载器
+                CreateWebRequest();
+
+                _steps = ESteps.CheckRequest;
+            }
+
+            // 检测下载结果
+            if (_steps == ESteps.CheckRequest)
+            {
+                DownloadProgress = _webRequest.downloadProgress;
+                DownloadedBytes = (long)_webRequest.downloadedBytes;
+                Progress = DownloadProgress;
+                if (_webRequest.isDone == false)
+                {
+                    CheckRequestTimeout();
+                    return;
+                }
+
+                // 检查网络错误
+                if (CheckRequestResult())
+                    _steps = ESteps.VerifyTempFile;
+                else
+                    _steps = ESteps.TryAgain;
+
+                // 注意：最终释放请求器
+                DisposeWebRequest();
+            }
+
+            // 验证下载文件
+            if (_steps == ESteps.VerifyTempFile)
+            {
+                var element = new TempFileElement(_tempFilePath, Bundle.FileCRC, Bundle.FileSize);
+                _verifyOperation = new VerifyTempFileOperation(element);
+                OperationSystem.StartOperation(_fileSystem.PackageName, _verifyOperation);
+                _steps = ESteps.CheckVerifyTempFile;
+            }
+
+            // 等待验证完成
+            if (_steps == ESteps.CheckVerifyTempFile)
+            {
+                if (IsWaitForAsyncComplete)
+                    _verifyOperation.WaitForAsyncComplete();
+
+                if (_verifyOperation.IsDone == false)
+                    return;
+
+                if (_verifyOperation.Status == EOperationStatus.Succeed)
+                {
+                    if (_cacheSystem.WriteCacheFile(Bundle, _tempFilePath))
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Succeed;
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"{_fileSystem.GetType().FullName} failed to write file !";
+                        YooLogger.Error(Error);
+                    }
+                }
+                else
+                {
+                    _steps = ESteps.TryAgain;
+                    Error = _verifyOperation.Error;
+                }
+
+                // 注意：验证完成后直接删除文件
+                if (File.Exists(_tempFilePath))
+                    File.Delete(_tempFilePath);
+            }
+
+            // 重新尝试下载
+            if (_steps == ESteps.TryAgain)
+            {
+                if (FailedTryAgain <= 0)
+                {
+                    Status = EOperationStatus.Failed;
+                    _steps = ESteps.Done;
+                    YooLogger.Error(Error);
+                    return;
+                }
+
+                _tryAgainTimer += Time.unscaledDeltaTime;
+                if (_tryAgainTimer > 1f)
+                {
+                    FailedTryAgain--;
+                    _steps = ESteps.CreateRequest;
+                    YooLogger.Warning(Error);
+                }
+            }
+        }
+        internal override void InternalOnAbort()
+        {
+            _steps = ESteps.Done;
+            DisposeWebRequest();
+        }
+        internal override void InternalWaitForAsyncComplete()
+        {
+            bool isReuqestLocalFile = IsRequestLocalFile();
+
+            while (true)
+            {
+                // 注意：如果是导入或解压本地文件，执行等待完毕
+                if (isReuqestLocalFile)
+                {
+                    InternalOnUpdate();
+                    if (IsDone)
+                        break;
+                }
+                else
+                {
+                    if (ExecuteWhileDone())
+                    {
+                        _steps = ESteps.Done;
+                        break;
+                    }
+                }
+            }
+        }
+
+        private void CreateWebRequest()
+        {
+            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
+            DownloadHandlerFile handler = new DownloadHandlerFile(_tempFilePath);
+            handler.removeFileOnAbort = true;
+            _webRequest.downloadHandler = handler;
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+            _webRequest.SendWebRequest();
+        }
+        private void DisposeWebRequest()
+        {
+            if (_webRequest != null)
+            {
+                //注意：引擎底层会自动调用Abort方法
+                _webRequest.Dispose();
+                _webRequest = null;
+            }
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/DownloadNormalFileOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 759967d543776a0469b625eff171d235
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/DownloadResumeFileOperation.cs

@@ -1,203 +1,15 @@
-using System.IO;
+using System.Collections.Generic;
+using System.IO;
 using UnityEngine;
 using UnityEngine.Networking;
 
 namespace YooAsset
 {
-    internal sealed class DCFSDownloadNormalFileOperation : DefaultDownloadFileOperation
+    internal sealed class DownloadResumeFileOperation : DefaultDownloadFileOperation
     {
-        private readonly DefaultCacheFileSystem _fileSystem;
-        private VerifyTempFileOperation _verifyOperation;
-        private string _tempFilePath;
-        private ESteps _steps = ESteps.None;
-
-        internal DCFSDownloadNormalFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, DownloadParam param) : base(bundle, param)
-        {
-            _fileSystem = fileSystem;
-        }
-        internal override void InternalOnStart()
-        {
-            _tempFilePath = _fileSystem.GetTempFilePath(Bundle);
-            _steps = ESteps.CheckExists;
-        }
-        internal override void InternalOnUpdate()
-        {
-            if (_steps == ESteps.None || _steps == ESteps.Done)
-                return;
-
-            // 检测文件是否存在
-            if (_steps == ESteps.CheckExists)
-            {
-                if (_fileSystem.Exists(Bundle))
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Succeed;
-                }
-                else
-                {
-                    _steps = ESteps.CreateRequest;
-                }
-            }
-
-            // 创建下载器
-            if (_steps == ESteps.CreateRequest)
-            {
-                FileUtility.CreateFileDirectory(_tempFilePath);
-
-                // 删除临时文件
-                if (File.Exists(_tempFilePath))
-                    File.Delete(_tempFilePath);
-
-                // 获取请求地址
-                _requestURL = GetRequestURL();
-
-                // 重置请求
-                ResetRequestFiled();
-
-                // 创建下载器
-                CreateWebRequest();
-
-                _steps = ESteps.CheckRequest;
-            }
-
-            // 检测下载结果
-            if (_steps == ESteps.CheckRequest)
-            {
-                DownloadProgress = _webRequest.downloadProgress;
-                DownloadedBytes = (long)_webRequest.downloadedBytes;
-                Progress = DownloadProgress;
-                if (_webRequest.isDone == false)
-                {
-                    CheckRequestTimeout();
-                    return;
-                }
-
-                // 检查网络错误
-                if (CheckRequestResult())
-                    _steps = ESteps.VerifyTempFile;
-                else
-                    _steps = ESteps.TryAgain;
-
-                // 注意：最终释放请求器
-                DisposeWebRequest();
-            }
-
-            // 验证下载文件
-            if (_steps == ESteps.VerifyTempFile)
-            {
-                var element = new TempFileElement(_tempFilePath, Bundle.FileCRC, Bundle.FileSize);
-                _verifyOperation = new VerifyTempFileOperation(element);
-                OperationSystem.StartOperation(_fileSystem.PackageName, _verifyOperation);
-                _steps = ESteps.CheckVerifyTempFile;
-            }
-
-            // 等待验证完成
-            if (_steps == ESteps.CheckVerifyTempFile)
-            {
-                if (IsWaitForAsyncComplete)
-                    _verifyOperation.WaitForAsyncComplete();
-
-                if (_verifyOperation.IsDone == false)
-                    return;
-
-                if (_verifyOperation.Status == EOperationStatus.Succeed)
-                {
-                    if (_fileSystem.WriteCacheFile(Bundle, _tempFilePath))
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Succeed;
-                    }
-                    else
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = $"{_fileSystem.GetType().FullName} failed to write file !";
-                        YooLogger.Error(Error);
-                    }
-                }
-                else
-                {
-                    _steps = ESteps.TryAgain;
-                    Error = _verifyOperation.Error;
-                }
-
-                // 注意：验证完成后直接删除文件
-                if (File.Exists(_tempFilePath))
-                    File.Delete(_tempFilePath);
-            }
-
-            // 重新尝试下载
-            if (_steps == ESteps.TryAgain)
-            {
-                if (FailedTryAgain <= 0)
-                {
-                    Status = EOperationStatus.Failed;
-                    _steps = ESteps.Done;
-                    YooLogger.Error(Error);
-                    return;
-                }
-
-                _tryAgainTimer += Time.unscaledDeltaTime;
-                if (_tryAgainTimer > 1f)
-                {
-                    FailedTryAgain--;
-                    _steps = ESteps.CreateRequest;
-                    YooLogger.Warning(Error);
-                }
-            }
-        }
-        internal override void InternalOnAbort()
-        {
-            _steps = ESteps.Done;
-            DisposeWebRequest();
-        }
-        internal override void InternalWaitForAsyncComplete()
-        {
-            bool isReuqestLocalFile = IsRequestLocalFile();
-
-            while (true)
-            {
-                // 注意：如果是导入或解压本地文件，执行等待完毕
-                if (isReuqestLocalFile)
-                {
-                    InternalOnUpdate();
-                    if (IsDone)
-                        break;
-                }
-                else
-                {
-                    if (ExecuteWhileDone())
-                    {
-                        _steps = ESteps.Done;
-                        break;
-                    }
-                }
-            }
-        }
-
-        private void CreateWebRequest()
-        {
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
-            DownloadHandlerFile handler = new DownloadHandlerFile(_tempFilePath);
-            handler.removeFileOnAbort = true;
-            _webRequest.downloadHandler = handler;
-            _webRequest.disposeDownloadHandlerOnDispose = true;
-            _webRequest.SendWebRequest();
-        }
-        private void DisposeWebRequest()
-        {
-            if (_webRequest != null)
-            {
-                //注意：引擎底层会自动调用Abort方法
-                _webRequest.Dispose();
-                _webRequest = null;
-            }
-        }
-    }
-
-    internal sealed class DCFSDownloadResumeFileOperation : DefaultDownloadFileOperation
-    {
-        private readonly DefaultCacheFileSystem _fileSystem;
+        private readonly IFileSystem _fileSystem;
+        private readonly ICacheSystem _cacheSystem;
+        private readonly List<long> _responseCodes;
         private DownloadHandlerFileRange _downloadHandle;
         private VerifyTempFileOperation _verifyOperation;
         private long _fileOriginLength = 0;
@@ -205,13 +17,15 @@ namespace YooAsset
         private ESteps _steps = ESteps.None;
 
 
-        internal DCFSDownloadResumeFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, DownloadParam param) : base(bundle, param)
+        internal DownloadResumeFileOperation(IFileSystem fileSystem, ICacheSystem cacheSystem, PackageBundle bundle, DownloadParam param, List<long> responseCodes) : base(bundle, param)
         {
             _fileSystem = fileSystem;
+            _cacheSystem = cacheSystem;
+            _responseCodes = responseCodes;
         }
         internal override void InternalOnStart()
         {
-            _tempFilePath = _fileSystem.GetTempFilePath(Bundle);
+            _tempFilePath = _cacheSystem.GetTempFilePath(Bundle);
             _steps = ESteps.CheckExists;
         }
         internal override void InternalOnUpdate()
@@ -313,7 +127,7 @@ namespace YooAsset
 
                 if (_verifyOperation.Status == EOperationStatus.Succeed)
                 {
-                    if (_fileSystem.WriteCacheFile(Bundle, _tempFilePath))
+                    if (_cacheSystem.WriteCacheFile(Bundle, _tempFilePath))
                     {
                         Status = EOperationStatus.Succeed;
                         _steps = ESteps.Done;
@@ -418,11 +232,11 @@ namespace YooAsset
         }
         private void ClearTempFileWhenError()
         {
-            if (_fileSystem.ResumeDownloadResponseCodes == null)
+            if (_responseCodes == null)
                 return;
 
             //说明：如果遇到以下错误返回码，验证失败直接删除文件
-            if (_fileSystem.ResumeDownloadResponseCodes.Contains(HttpCode))
+            if (_responseCodes.Contains(HttpCode))
             {
                 if (File.Exists(_tempFilePath))
                     File.Delete(_tempFilePath);

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/DownloadResumeFileOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 9bfb785912326f942a31dc77762eb16a
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/SearchCacheFilesOperation.cs

@@ -15,7 +15,9 @@ namespace YooAsset
             Done,
         }
 
-        private readonly DefaultCacheFileSystem _fileSystem;
+        private readonly ICacheSystem _cacheSystem;
+        private readonly string _packageName;
+        private readonly bool _appendFileExtension;
         private IEnumerator<DirectoryInfo> _filesEnumerator = null;
         private float _verifyStartTime;
         private ESteps _steps = ESteps.None;
@@ -26,9 +28,11 @@ namespace YooAsset
         public readonly List<CacheFileElement> Result = new List<CacheFileElement>(5000);
 
 
-        internal SearchCacheFilesOperation(DefaultCacheFileSystem fileSystem)
+        internal SearchCacheFilesOperation(ICacheSystem cacheSystem, string packageName, bool appendFileExtension)
         {
-            _fileSystem = fileSystem;
+            _cacheSystem = cacheSystem;
+            _packageName = packageName;
+            _appendFileExtension = appendFileExtension;   
         }
         internal override void InternalOnStart()
         {
@@ -42,7 +46,7 @@ namespace YooAsset
 
             if (_steps == ESteps.Prepare)
             {
-                DirectoryInfo rootDirectory = new DirectoryInfo(_fileSystem.GetCacheFilesRoot());
+                DirectoryInfo rootDirectory = new DirectoryInfo(_cacheSystem.GetCacheFileRoot());
                 if (rootDirectory.Exists)
                 {
                     var directorieInfos = rootDirectory.EnumerateDirectories();
@@ -80,7 +84,7 @@ namespace YooAsset
                 foreach (var chidDirectory in childDirectories)
                 {
                     string bundleGUID = chidDirectory.Name;
-                    if (_fileSystem.IsRecordFile(bundleGUID))
+                    if (_cacheSystem.IsRecordFile(bundleGUID))
                         continue;
 
                     // 创建验证元素类
@@ -89,14 +93,14 @@ namespace YooAsset
                     string infoFilePath = $"{fileRootPath}/{ DefaultCacheFileSystemDefine.SaveBundleInfoFileName}";
 
                     // 存储的数据文件追加文件格式
-                    if (_fileSystem.AppendFileExtension)
+                    if (_appendFileExtension)
                     {
                         string dataFileExtension = FindDataFileExtension(chidDirectory);
                         if (string.IsNullOrEmpty(dataFileExtension) == false)
                             dataFilePath += dataFileExtension;
                     }
 
-                    var element = new CacheFileElement(_fileSystem.PackageName, bundleGUID, fileRootPath, dataFilePath, infoFilePath);
+                    var element = new CacheFileElement(_packageName, bundleGUID, fileRootPath, dataFilePath, infoFilePath);
                     Result.Add(element);
                 }
 

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/VerifyCacheFilesOperation.cs

@@ -6,44 +6,10 @@ using System.Threading;
 
 namespace YooAsset
 {
-    internal class CacheFileElement
-    {
-        public string PackageName { private set; get; }
-        public string BundleGUID { private set; get; }
-        public string FileRootPath { private set; get; }
-        public string DataFilePath { private set; get; }
-        public string InfoFilePath { private set; get; }
-
-        public EFileVerifyResult Result;
-        public string DataFileCRC;
-        public long DataFileSize;
-
-        public CacheFileElement(string packageName, string bundleGUID, string fileRootPath, string dataFilePath, string infoFilePath)
-        {
-            PackageName = packageName;
-            BundleGUID = bundleGUID;
-            FileRootPath = fileRootPath;
-            DataFilePath = dataFilePath;
-            InfoFilePath = infoFilePath;
-        }
-
-        public void DeleteFiles()
-        {
-            try
-            {
-                Directory.Delete(FileRootPath, true);
-            }
-            catch (System.Exception e)
-            {
-                YooLogger.Warning($"Failed to delete cache bundle folder : {e}");
-            }
-        }
-    }
-
     /// <summary>
     /// 缓存文件验证（线程版）
     /// </summary>
-    internal class VerifyCacheFilesOperation : AsyncOperationBase
+    internal sealed class VerifyCacheFilesOperation : AsyncOperationBase
     {
         private enum ESteps
         {
@@ -54,10 +20,10 @@ namespace YooAsset
         }
 
         private readonly ThreadSyncContext _syncContext = new ThreadSyncContext();
-        private readonly DefaultCacheFileSystem _fileSystem;
+        private readonly ICacheSystem _cacheSystem;
+        private readonly EFileVerifyLevel _verifyLevel;
         private List<CacheFileElement> _waitingList;
         private List<CacheFileElement> _verifyingList;
-        private EFileVerifyLevel _verifyLevel = EFileVerifyLevel.Middle;
         private int _verifyMaxNum;
         private int _verifyTotalCount;
         private float _verifyStartTime;
@@ -66,11 +32,11 @@ namespace YooAsset
         private ESteps _steps = ESteps.None;
 
 
-        internal VerifyCacheFilesOperation(DefaultCacheFileSystem fileSystem, List<CacheFileElement> elements)
+        internal VerifyCacheFilesOperation(ICacheSystem cacheSystem, EFileVerifyLevel verifyLevel, List<CacheFileElement> elements)
         {
-            _fileSystem = fileSystem;
+            _cacheSystem = cacheSystem;
+            _verifyLevel = verifyLevel;
             _waitingList = elements;
-            _verifyLevel = _fileSystem.FileVerifyLevel;
         }
         internal override void InternalOnStart()
         {
@@ -158,8 +124,8 @@ namespace YooAsset
             if (element.Result == EFileVerifyResult.Succeed)
             {
                 _succeedCount++;
-                var fileWrapper = new DefaultCacheFileSystem.FileWrapper(element.InfoFilePath, element.DataFilePath, element.DataFileCRC, element.DataFileSize);
-                _fileSystem.RecordFile(element.BundleGUID, fileWrapper);
+                var fileWrapper = new CacheWrapper(element.InfoFilePath, element.DataFilePath, element.DataFileCRC, element.DataFileSize);
+                _cacheSystem.RecordFile(element.BundleGUID, fileWrapper);
             }
             else
             {
@@ -191,7 +157,7 @@ namespace YooAsset
                         return EFileVerifyResult.InfoFileNotExisted;
 
                     // 解析信息文件获取验证数据
-                    _fileSystem.ReadInfoFile(element.InfoFilePath, out element.DataFileCRC, out element.DataFileSize);
+                    _cacheSystem.ReadInfoFile(element.InfoFilePath, out element.DataFileCRC, out element.DataFileSize);
                 }
             }
             catch (Exception)
@@ -199,7 +165,7 @@ namespace YooAsset
                 return EFileVerifyResult.Exception;
             }
 
-            return FileSystemHelper.FileVerify(element.DataFilePath, element.DataFileSize, element.DataFileCRC, verifyLevel);
+            return FileVerifyHelper.FileVerify(element.DataFilePath, element.DataFileSize, element.DataFileCRC, verifyLevel);
         }
     }
 }

Assets/YooAsset/Runtime/FileSystem/CacheSystem/Operation/VerifyTempFileOperation.cs

@@ -3,29 +3,10 @@ using System.Threading;
 
 namespace YooAsset
 {
-    internal class TempFileElement
-    {
-        public string TempFilePath { private set; get; }
-        public string TempFileCRC { private set; get; }
-        public long TempFileSize { private set; get; }
-
-        /// <summary>
-        /// 注意：原子操作对象
-        /// </summary>
-        public int Result = 0;
-
-        public TempFileElement(string filePath, string fileCRC, long fileSize)
-        {
-            TempFilePath = filePath;
-            TempFileCRC = fileCRC;
-            TempFileSize = fileSize;
-        }
-    }
-
     /// <summary>
     /// 下载文件验证（线程版）
     /// </summary>
-    internal class VerifyTempFileOperation : AsyncOperationBase
+    internal sealed class VerifyTempFileOperation : AsyncOperationBase
     {
         private enum ESteps
         {
@@ -41,7 +22,7 @@ namespace YooAsset
         /// <summary>
         /// 验证结果
         /// </summary>
-        public EFileVerifyResult VerifyResult { protected set; get; }
+        public EFileVerifyResult VerifyResult { private set; get; }
 
 
         internal VerifyTempFileOperation(TempFileElement element)
@@ -103,7 +84,7 @@ namespace YooAsset
         private void VerifyInThread(object obj)
         {
             TempFileElement element = (TempFileElement)obj;
-            int result = (int)FileSystemHelper.FileVerify(element.TempFilePath, element.TempFileSize, element.TempFileCRC, EFileVerifyLevel.High);
+            int result = (int)FileVerifyHelper.FileVerify(element.TempFilePath, element.TempFileSize, element.TempFileCRC, EFileVerifyLevel.High);
             element.Result = result;
         }
     }

Assets/YooAsset/Runtime/FileSystem/CacheSystem/TempFileElement.cs

@@ -0,0 +1,22 @@
+
+namespace YooAsset
+{
+    internal class TempFileElement
+    {
+        public string TempFilePath { private set; get; }
+        public string TempFileCRC { private set; get; }
+        public long TempFileSize { private set; get; }
+
+        /// <summary>
+        /// 注意：原子操作对象
+        /// </summary>
+        public int Result = 0;
+
+        public TempFileElement(string filePath, string fileCRC, long fileSize)
+        {
+            TempFilePath = filePath;
+            TempFileCRC = fileCRC;
+            TempFileSize = fileSize;
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/CacheSystem/TempFileElement.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 220136fdc4a13d84e97b1249cfc65f3b
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystem.cs

@@ -10,36 +10,6 @@ namespace YooAsset
     /// </summary>
     internal class DefaultBuildinFileSystem : IFileSystem
     {
-        private class UnpackRemoteServices : IRemoteServices
-        {
-            private readonly string _buildinPackageRoot;
-            protected readonly Dictionary<string, string> _mapping = new Dictionary<string, string>(10000);
-
-            public UnpackRemoteServices(string buildinPackRoot)
-            {
-                _buildinPackageRoot = buildinPackRoot;
-            }
-            string IRemoteServices.GetRemoteMainURL(string fileName)
-            {
-                return GetFileLoadURL(fileName);
-            }
-            string IRemoteServices.GetRemoteFallbackURL(string fileName)
-            {
-                return GetFileLoadURL(fileName);
-            }
-
-            private string GetFileLoadURL(string fileName)
-            {
-                if (_mapping.TryGetValue(fileName, out string url) == false)
-                {
-                    string filePath = PathUtility.Combine(_buildinPackageRoot, fileName);
-                    url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _mapping.Add(fileName, url);
-                }
-                return url;
-            }
-        }
-
         public class FileWrapper
         {
             public string FileName { private set; get; }
@@ -220,7 +190,7 @@ namespace YooAsset
             _packageRoot = PathUtility.Combine(rootDirectory, packageName);
 
             // 创建解压文件系统
-            var remoteServices = new UnpackRemoteServices(_packageRoot);
+            var remoteServices = new DefaultUnpackRemoteServices(_packageRoot);
             _unpackFileSystem = new DefaultUnpackFileSystem();
             _unpackFileSystem.SetParameter(FileSystemParametersDefine.REMOTE_SERVICES, remoteServices);
             _unpackFileSystem.SetParameter(FileSystemParametersDefine.FILE_VERIFY_LEVEL, FileVerifyLevel);
@@ -231,6 +201,7 @@ namespace YooAsset
         }
         public virtual void OnUpdate()
         {
+            _unpackFileSystem.OnUpdate();
         }
 
         public virtual bool Belong(PackageBundle bundle)

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs

@@ -10,33 +10,18 @@ namespace YooAsset
     /// 缓存文件系统
     /// 说明：正在进行的下载器会在ResourcePackage销毁的时候执行Abort操作！
     /// </summary>
-    internal class DefaultCacheFileSystem : IFileSystem
+    internal class DefaultCacheFileSystem : IFileSystem, ICacheSystem
     {
-        public class FileWrapper
-        {
-            public string InfoFilePath { private set; get; }
-            public string DataFilePath { private set; get; }
-            public string DataFileCRC { private set; get; }
-            public long DataFileSize { private set; get; }
-
-            public FileWrapper(string infoFilePath, string dataFilePath, string dataFileCRC, long dataFileSize)
-            {
-                InfoFilePath = infoFilePath;
-                DataFilePath = dataFilePath;
-                DataFileCRC = dataFileCRC;
-                DataFileSize = dataFileSize;
-            }
-        }
-
-        protected readonly Dictionary<string, DefaultDownloadFileOperation> _downloaders = new Dictionary<string, DefaultDownloadFileOperation>(1000);
-        protected readonly Dictionary<string, FileWrapper> _wrappers = new Dictionary<string, FileWrapper>(10000);
+        protected readonly Dictionary<string, CacheWrapper> _wrappers = new Dictionary<string, CacheWrapper>(10000);
         protected readonly Dictionary<string, Stream> _loadedStream = new Dictionary<string, Stream>(10000);
         protected readonly Dictionary<string, string> _dataFilePaths = new Dictionary<string, string>(10000);
         protected readonly Dictionary<string, string> _infoFilePaths = new Dictionary<string, string>(10000);
         protected readonly Dictionary<string, string> _tempFilePaths = new Dictionary<string, string>(10000);
+        protected readonly Dictionary<string, DefaultDownloadFileOperation> _downloaders = new Dictionary<string, DefaultDownloadFileOperation>(1000);
         protected readonly List<string> _removeList = new List<string>(1000);
+
         protected string _packageRoot;
-        protected string _saveFileRoot;
+        protected string _cacheFileRoot;
         protected string _tempFileRoot;
         protected string _manifestFileRoot;
 
@@ -128,13 +113,13 @@ namespace YooAsset
         }
         public virtual FSClearAllBundleFilesOperation ClearAllBundleFilesAsync()
         {
-            var operation = new DCFSClearAllBundleFilesOperation(this);
+            var operation = new ClearAllCacheFilesOperation(this);
             OperationSystem.StartOperation(PackageName, operation);
             return operation;
         }
         public virtual FSClearUnusedBundleFilesOperation ClearUnusedBundleFilesAsync(PackageManifest manifest)
         {
-            var operation = new DCFSClearUnusedBundleFilesOperation(this, manifest);
+            var operation = new ClearUnusedCacheFilesOperation(this, manifest);
             OperationSystem.StartOperation(PackageName, operation);
             return operation;
         }
@@ -163,7 +148,7 @@ namespace YooAsset
 
                 if (bundle.FileSize >= ResumeDownloadMinimumSize)
                 {
-                    var newDownloader = new DCFSDownloadResumeFileOperation(this, bundle, param);
+                    var newDownloader = new DownloadResumeFileOperation(this, this, bundle, param, ResumeDownloadResponseCodes);
                     newDownloader.Reference();
                     _downloaders.Add(bundle.BundleGUID, newDownloader);
                     OperationSystem.StartOperation(PackageName, newDownloader);
@@ -171,7 +156,7 @@ namespace YooAsset
                 }
                 else
                 {
-                    var newDownloader = new DCFSDownloadNormalFileOperation(this, bundle, param);
+                    var newDownloader = new DownloadNormalFileOperation(this, this, bundle, param);
                     newDownloader.Reference();
                     _downloaders.Add(bundle.BundleGUID, newDownloader);
                     OperationSystem.StartOperation(PackageName, newDownloader);
@@ -254,10 +239,10 @@ namespace YooAsset
             PackageName = packageName;
 
             if (string.IsNullOrEmpty(rootDirectory))
-                rootDirectory = GetDefaultRoot();
+                rootDirectory = CacheHelper.GetDefaultCacheRoot();
 
             _packageRoot = PathUtility.Combine(rootDirectory, packageName);
-            _saveFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.SaveFilesFolderName);
+            _cacheFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.SaveFilesFolderName);
             _tempFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.TempFilesFolderName);
             _manifestFileRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.ManifestFilesFolderName);
         }
@@ -372,61 +357,10 @@ namespace YooAsset
             }
         }
 
-        #region 内部方法
-        private readonly BufferWriter _sharedBuffer = new BufferWriter(1024);
-        public void WriteInfoFile(string filePath, string dataFileCRC, long dataFileSize)
+        #region 缓存系统
+        public string GetCacheFileRoot()
         {
-            using (FileStream fs = new FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.Read))
-            {
-                _sharedBuffer.Clear();
-                _sharedBuffer.WriteUTF8(dataFileCRC);
-                _sharedBuffer.WriteInt64(dataFileSize);
-                _sharedBuffer.WriteToStream(fs);
-                fs.Flush();
-            }
-        }
-        public void ReadInfoFile(string filePath, out string dataFileCRC, out long dataFileSize)
-        {
-            byte[] binaryData = FileUtility.ReadAllBytes(filePath);
-            BufferReader buffer = new BufferReader(binaryData);
-            dataFileCRC = buffer.ReadUTF8();
-            dataFileSize = buffer.ReadInt64();
-        }
-
-        protected string GetDefaultRoot()
-        {
-#if UNITY_EDITOR
-            // 注意：为了方便调试查看，编辑器下把存储目录放到项目里。
-            string projectPath = Path.GetDirectoryName(UnityEngine.Application.dataPath);
-            projectPath = PathUtility.RegularPath(projectPath);
-            return PathUtility.Combine(projectPath, YooAssetSettingsData.Setting.DefaultYooFolderName);
-#elif UNITY_STANDALONE
-            return PathUtility.Combine(UnityEngine.Application.dataPath, YooAssetSettingsData.Setting.DefaultYooFolderName);
-#else
-            return PathUtility.Combine(UnityEngine.Application.persistentDataPath, YooAssetSettingsData.Setting.DefaultYooFolderName);	
-#endif
-        }
-        protected string GetDataFilePath(PackageBundle bundle)
-        {
-            if (_dataFilePaths.TryGetValue(bundle.BundleGUID, out string filePath) == false)
-            {
-                string folderName = bundle.FileHash.Substring(0, 2);
-                filePath = PathUtility.Combine(_saveFileRoot, folderName, bundle.BundleGUID, DefaultCacheFileSystemDefine.SaveBundleDataFileName);
-                if (AppendFileExtension)
-                    filePath += bundle.FileExtension;
-                _dataFilePaths.Add(bundle.BundleGUID, filePath);
-            }
-            return filePath;
-        }
-        protected string GetInfoFilePath(PackageBundle bundle)
-        {
-            if (_infoFilePaths.TryGetValue(bundle.BundleGUID, out string filePath) == false)
-            {
-                string folderName = bundle.FileHash.Substring(0, 2);
-                filePath = PathUtility.Combine(_saveFileRoot, folderName, bundle.BundleGUID, DefaultCacheFileSystemDefine.SaveBundleInfoFileName);
-                _infoFilePaths.Add(bundle.BundleGUID, filePath);
-            }
-            return filePath;
+            return _cacheFileRoot;
         }
         public string GetTempFilePath(PackageBundle bundle)
         {
@@ -437,41 +371,38 @@ namespace YooAsset
             }
             return filePath;
         }
-        public string GetCacheFileLoadPath(PackageBundle bundle)
+        public string GetDataFilePath(PackageBundle bundle)
         {
-            return GetDataFilePath(bundle);
+            if (_dataFilePaths.TryGetValue(bundle.BundleGUID, out string filePath) == false)
+            {
+                string folderName = bundle.FileHash.Substring(0, 2);
+                filePath = PathUtility.Combine(_cacheFileRoot, folderName, bundle.BundleGUID, DefaultCacheFileSystemDefine.SaveBundleDataFileName);
+                if (AppendFileExtension)
+                    filePath += bundle.FileExtension;
+                _dataFilePaths.Add(bundle.BundleGUID, filePath);
+            }
+            return filePath;
         }
-        public string GetCacheFilesRoot()
+        public string GetInfoFilePath(PackageBundle bundle)
         {
-            return _saveFileRoot;
+            if (_infoFilePaths.TryGetValue(bundle.BundleGUID, out string filePath) == false)
+            {
+                string folderName = bundle.FileHash.Substring(0, 2);
+                filePath = PathUtility.Combine(_cacheFileRoot, folderName, bundle.BundleGUID, DefaultCacheFileSystemDefine.SaveBundleInfoFileName);
+                _infoFilePaths.Add(bundle.BundleGUID, filePath);
+            }
+            return filePath;
         }
-        public string GetCachePackageHashFilePath(string packageVersion)
+        public List<string> GetAllCachedBundleGUIDs()
         {
-            string fileName = YooAssetSettingsData.GetPackageHashFileName(PackageName, packageVersion);
-            return PathUtility.Combine(_manifestFileRoot, fileName);
-        }
-        public string GetCachePackageManifestFilePath(string packageVersion)
-        {
-            string fileName = YooAssetSettingsData.GetManifestBinaryFileName(PackageName, packageVersion);
-            return PathUtility.Combine(_manifestFileRoot, fileName);
-        }
-        public string GetSandboxAppFootPrintFilePath()
-        {
-            return PathUtility.Combine(_manifestFileRoot, DefaultCacheFileSystemDefine.AppFootPrintFileName);
+            return _wrappers.Keys.ToList();
         }
 
-        /// <summary>
-        /// 是否已经记录了文件
-        /// </summary>
         public bool IsRecordFile(string bundleGUID)
         {
             return _wrappers.ContainsKey(bundleGUID);
         }
-
-        /// <summary>
-        /// 记录文件信息
-        /// </summary>
-        public bool RecordFile(string bundleGUID, FileWrapper wrapper)
+        public bool RecordFile(string bundleGUID, CacheWrapper wrapper)
         {
             if (_wrappers.ContainsKey(bundleGUID))
             {
@@ -483,21 +414,14 @@ namespace YooAsset
             return true;
         }
 
-        /// <summary>
-        /// 验证缓存文件
-        /// </summary>
         public EFileVerifyResult VerifyCacheFile(PackageBundle bundle)
         {
-            if (_wrappers.TryGetValue(bundle.BundleGUID, out FileWrapper wrapper) == false)
+            if (_wrappers.TryGetValue(bundle.BundleGUID, out CacheWrapper wrapper) == false)
                 return EFileVerifyResult.CacheNotFound;
 
-            EFileVerifyResult result = FileSystemHelper.FileVerify(wrapper.DataFilePath, wrapper.DataFileSize, wrapper.DataFileCRC, EFileVerifyLevel.High);
+            EFileVerifyResult result = FileVerifyHelper.FileVerify(wrapper.DataFilePath, wrapper.DataFileSize, wrapper.DataFileCRC, EFileVerifyLevel.High);
             return result;
         }
-
-        /// <summary>
-        /// 写入缓存文件
-        /// </summary>
         public bool WriteCacheFile(PackageBundle bundle, string copyPath)
         {
             if (_wrappers.ContainsKey(bundle.BundleGUID))
@@ -530,16 +454,12 @@ namespace YooAsset
                 return false;
             }
 
-            FileWrapper wrapper = new FileWrapper(infoFilePath, dataFilePath, bundle.FileCRC, bundle.FileSize);
+            var wrapper = new CacheWrapper(infoFilePath, dataFilePath, bundle.FileCRC, bundle.FileSize);
             return RecordFile(bundle.BundleGUID, wrapper);
         }
-
-        /// <summary>
-        /// 删除缓存文件
-        /// </summary>
         public bool DeleteCacheFile(string bundleGUID)
         {
-            if (_wrappers.TryGetValue(bundleGUID, out FileWrapper wrapper))
+            if (_wrappers.TryGetValue(bundleGUID, out CacheWrapper wrapper))
             {
                 try
                 {
@@ -562,6 +482,47 @@ namespace YooAsset
             }
         }
 
+        private readonly BufferWriter _sharedBuffer = new BufferWriter(1024);
+        public void WriteInfoFile(string filePath, string dataFileCRC, long dataFileSize)
+        {
+            using (FileStream fs = new FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.Read))
+            {
+                _sharedBuffer.Clear();
+                _sharedBuffer.WriteUTF8(dataFileCRC);
+                _sharedBuffer.WriteInt64(dataFileSize);
+                _sharedBuffer.WriteToStream(fs);
+                fs.Flush();
+            }
+        }
+        public void ReadInfoFile(string filePath, out string dataFileCRC, out long dataFileSize)
+        {
+            byte[] binaryData = FileUtility.ReadAllBytes(filePath);
+            BufferReader buffer = new BufferReader(binaryData);
+            dataFileCRC = buffer.ReadUTF8();
+            dataFileSize = buffer.ReadInt64();
+        }
+        #endregion
+
+        #region 内部方法
+        public string GetCacheFileLoadPath(PackageBundle bundle)
+        {
+            return GetDataFilePath(bundle);
+        }
+        public string GetCachePackageHashFilePath(string packageVersion)
+        {
+            string fileName = YooAssetSettingsData.GetPackageHashFileName(PackageName, packageVersion);
+            return PathUtility.Combine(_manifestFileRoot, fileName);
+        }
+        public string GetCachePackageManifestFilePath(string packageVersion)
+        {
+            string fileName = YooAssetSettingsData.GetManifestBinaryFileName(PackageName, packageVersion);
+            return PathUtility.Combine(_manifestFileRoot, fileName);
+        }
+        public string GetSandboxAppFootPrintFilePath()
+        {
+            return PathUtility.Combine(_manifestFileRoot, DefaultCacheFileSystemDefine.AppFootPrintFileName);
+        }
+
         /// <summary>
         /// 删除所有清单文件
         /// </summary>
@@ -573,14 +534,6 @@ namespace YooAsset
             }
         }
 
-        /// <summary>
-        /// 获取所有缓存文件GUID
-        /// </summary>
-        public List<string> GetAllCachedBundleGUIDs()
-        {
-            return _wrappers.Keys.ToList();
-        }
-
         /// <summary>
         /// 加载加密资源文件
         /// </summary>

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSInitializeOperation.cs

@@ -12,7 +12,7 @@ namespace YooAsset
             Done,
         }
 
-        private readonly DefaultCacheFileSystem _fileSytem;
+        private readonly DefaultCacheFileSystem _fileSystem;
         private SearchCacheFilesOperation _searchCacheFilesOp;
         private VerifyCacheFilesOperation _verifyCacheFilesOp;
         private ESteps _steps = ESteps.None;
@@ -20,7 +20,7 @@ namespace YooAsset
 
         internal DCFSInitializeOperation(DefaultCacheFileSystem fileSystem)
         {
-            _fileSytem = fileSystem;
+            _fileSystem = fileSystem;
         }
         internal override void InternalOnStart()
         {
@@ -39,14 +39,14 @@ namespace YooAsset
 
             if (_steps == ESteps.CheckAppFootPrint)
             {
-                var appFootPrint = new ApplicationFootPrint(_fileSytem);
-                appFootPrint.Load(_fileSytem.PackageName);
+                var appFootPrint = new ApplicationFootPrint(_fileSystem);
+                appFootPrint.Load(_fileSystem.PackageName);
 
                 // 如果水印发生变化，则说明覆盖安装后首次打开游戏
                 if (appFootPrint.IsDirty())
                 {
-                    _fileSytem.DeleteAllManifestFiles();
-                    appFootPrint.Coverage(_fileSytem.PackageName);
+                    _fileSystem.DeleteAllManifestFiles();
+                    appFootPrint.Coverage(_fileSystem.PackageName);
                     YooLogger.Warning("Delete manifest files when application foot print dirty !");
                 }
 
@@ -57,8 +57,8 @@ namespace YooAsset
             {
                 if (_searchCacheFilesOp == null)
                 {
-                    _searchCacheFilesOp = new SearchCacheFilesOperation(_fileSytem);
-                    OperationSystem.StartOperation(_fileSytem.PackageName, _searchCacheFilesOp);
+                    _searchCacheFilesOp = new SearchCacheFilesOperation(_fileSystem, _fileSystem.PackageName, _fileSystem.AppendFileExtension);
+                    OperationSystem.StartOperation(_fileSystem.PackageName, _searchCacheFilesOp);
                 }
 
                 Progress = _searchCacheFilesOp.Progress;
@@ -72,8 +72,8 @@ namespace YooAsset
             {
                 if (_verifyCacheFilesOp == null)
                 {
-                    _verifyCacheFilesOp = new VerifyCacheFilesOperation(_fileSytem, _searchCacheFilesOp.Result);
-                    OperationSystem.StartOperation(_fileSytem.PackageName, _verifyCacheFilesOp);
+                    _verifyCacheFilesOp = new VerifyCacheFilesOperation(_fileSystem, _fileSystem.FileVerifyLevel, _searchCacheFilesOp.Result);
+                    OperationSystem.StartOperation(_fileSystem.PackageName, _verifyCacheFilesOp);
                 }
 
                 Progress = _verifyCacheFilesOp.Progress;
@@ -84,7 +84,7 @@ namespace YooAsset
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Succeed;
-                    YooLogger.Log($"Package '{_fileSytem.PackageName}' cached files count : {_fileSytem.FileCount}");
+                    YooLogger.Log($"Package '{_fileSystem.PackageName}' cached files count : {_fileSystem.FileCount}");
                 }
                 else
                 {

Assets/YooAsset/Runtime/FileSystem/DefaultUnpackFileSystem/DefaultUnpackFileSystem.cs

@@ -14,7 +14,7 @@ namespace YooAsset
             base.OnCreate(packageName, rootDirectory);
 
             // 注意：重写保存根目录和临时目录
-            _saveFileRoot = PathUtility.Combine(_packageRoot, DefaultUnpackFileSystemDefine.SaveFilesFolderName);
+            _cacheFileRoot = PathUtility.Combine(_packageRoot, DefaultUnpackFileSystemDefine.SaveFilesFolderName);
             _tempFileRoot = PathUtility.Combine(_packageRoot, DefaultUnpackFileSystemDefine.TempFilesFolderName);
         }
     }

Assets/YooAsset/Runtime/FileSystem/DefaultUnpackFileSystem/DefaultUnpackRemoteServices.cs

@@ -0,0 +1,34 @@
+using System.Collections.Generic;
+
+namespace YooAsset
+{
+    internal class DefaultUnpackRemoteServices : IRemoteServices
+    {
+        private readonly string _buildinPackageRoot;
+        protected readonly Dictionary<string, string> _mapping = new Dictionary<string, string>(10000);
+
+        public DefaultUnpackRemoteServices(string buildinPackRoot)
+        {
+            _buildinPackageRoot = buildinPackRoot;
+        }
+        string IRemoteServices.GetRemoteMainURL(string fileName)
+        {
+            return GetFileLoadURL(fileName);
+        }
+        string IRemoteServices.GetRemoteFallbackURL(string fileName)
+        {
+            return GetFileLoadURL(fileName);
+        }
+
+        private string GetFileLoadURL(string fileName)
+        {
+            if (_mapping.TryGetValue(fileName, out string url) == false)
+            {
+                string filePath = PathUtility.Combine(_buildinPackageRoot, fileName);
+                url = DownloadSystemHelper.ConvertToWWWPath(filePath);
+                _mapping.Add(fileName, url);
+            }
+            return url;
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/DefaultUnpackFileSystem/DefaultUnpackRemoteServices.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 32c355598c9dff847af87f4a867a2d5c
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/FileVerifyHelper.cs

@@ -3,7 +3,7 @@ using System.IO;
 
 namespace YooAsset
 {
-    internal class FileSystemHelper
+    internal class FileVerifyHelper
     {
         /// <summary>
         /// 文件校验

Assets/YooAsset/Runtime/FileSystem/FileVerifyHelper.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: db3336ad3b5a8f349a3144e77f23fcf8
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/ResourcePackage/PackageManifest.cs

@@ -210,10 +210,24 @@ namespace YooAsset
             return BundleDic3.ContainsKey(bundleGUID);
         }
 
+        /// <summary>
+        /// 获取所有的资源信息
+        /// </summary>
+        public AssetInfo[] GetAllAssetInfos()
+        {
+            List<AssetInfo> result = new List<AssetInfo>(AssetList.Count);
+            foreach (var packageAsset in AssetList)
+            {
+                AssetInfo assetInfo = new AssetInfo(PackageName, packageAsset, null);
+                result.Add(assetInfo);
+            }
+            return result.ToArray();
+        }
+
         /// <summary>
         /// 获取资源信息列表
         /// </summary>
-        public AssetInfo[] GetAssetsInfoByTags(string[] tags)
+        public AssetInfo[] GetAssetInfosByTags(string[] tags)
         {
             List<AssetInfo> result = new List<AssetInfo>(100);
             foreach (var packageAsset in AssetList)

Assets/YooAsset/Runtime/ResourcePackage/ResourcePackage.cs

@@ -176,26 +176,6 @@ namespace YooAsset
                 }
 #endif
             }
-
-            // 检测文件系统参数
-            if (_playMode == EPlayMode.WebPlayMode)
-            {
-                var webPlayModeParams = parameters as WebPlayModeParameters;
-                if (webPlayModeParams.WebServerFileSystemParameters != null)
-                {
-                    var fileSystemClassName = webPlayModeParams.WebServerFileSystemParameters.FileSystemClass;
-                    if (fileSystemClassName == typeof(DefaultCacheFileSystem).FullName
-                        || fileSystemClassName == typeof(DefaultBuildinFileSystem).FullName)
-                        throw new Exception($"{fileSystemClassName} not support {nameof(EPlayMode.WebPlayMode)}");
-                }
-                if (webPlayModeParams.WebRemoteFileSystemParameters != null)
-                {
-                    var fileSystemClassName = webPlayModeParams.WebRemoteFileSystemParameters.FileSystemClass;
-                    if (fileSystemClassName == typeof(DefaultCacheFileSystem).FullName
-                        || fileSystemClassName == typeof(DefaultBuildinFileSystem).FullName)
-                        throw new Exception($"{fileSystemClassName} not support {nameof(EPlayMode.WebPlayMode)}");
-                }
-            }
         }
         private void InitializeOperation_Completed(AsyncOperationBase op)
         {
@@ -359,6 +339,15 @@ namespace YooAsset
             return IsNeedDownloadFromRemoteInternal(assetInfo);
         }
 
+        /// <summary>
+        /// 获取所有的资源信息
+        /// </summary>
+        public AssetInfo[] GetAllAssetInfos()
+        {
+            DebugCheckInitialize();
+            return _playModeImpl.ActiveManifest.GetAllAssetInfos();
+        }
+
         /// <summary>
         /// 获取资源信息列表
         /// </summary>
@@ -367,7 +356,7 @@ namespace YooAsset
         {
             DebugCheckInitialize();
             string[] tags = new string[] { tag };
-            return _playModeImpl.ActiveManifest.GetAssetsInfoByTags(tags);
+            return _playModeImpl.ActiveManifest.GetAssetInfosByTags(tags);
         }
 
         /// <summary>
@@ -377,7 +366,7 @@ namespace YooAsset
         public AssetInfo[] GetAssetInfos(string[] tags)
         {
             DebugCheckInitialize();
-            return _playModeImpl.ActiveManifest.GetAssetsInfoByTags(tags);
+            return _playModeImpl.ActiveManifest.GetAssetInfosByTags(tags);
         }
 
         /// <summary>

Assets/YooAsset/Samples~/Extension Sample/Runtime/AssetHandleExtension.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 using UnityEngine;
 using YooAsset;
 
-public static class AssetOperationHandleExtension
+public static class AssetHandleExtension
 {
     /// <summary>
     /// 等待异步执行完毕

Assets/YooAsset/Samples~/Extension Sample/Runtime/CopyBuildinManifestOperation.cs

@@ -0,0 +1,159 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+using System.Security.Policy;
+using UnityEngine;
+using YooAsset;
+
+/// <summary>
+/// 拷贝内置清单文件到沙盒目录
+/// </summary>
+public class CopyBuildinManifestOperation : GameAsyncOperation
+{
+    private enum ESteps
+    {
+        None,
+        CheckHashFile,
+        UnpackHashFile,
+        CheckManifestFile,
+        UnpackManifestFile,
+        Done,
+    }
+
+    private readonly string _packageName;
+    private readonly string _packageVersion;
+    private ESteps _steps = ESteps.None;
+    private UnityWebFileRequestOperation _hashFileRequestOp;
+    private UnityWebFileRequestOperation _manifestFileRequestOp;
+
+    public CopyBuildinManifestOperation(string packageName, string packageVersion)
+    {
+        _packageName = packageName;
+        _packageVersion = packageVersion;
+    }
+    protected override void OnStart()
+    {
+        _steps = ESteps.CheckHashFile;
+    }
+    protected override void OnUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.CheckHashFile)
+        {
+            string hashFilePath = GetCacheHashFilePath();
+            if (File.Exists(hashFilePath))
+            {
+                _steps = ESteps.CheckManifestFile;
+                return;
+            }
+
+            _steps = ESteps.UnpackHashFile;
+        }
+
+        if (_steps == ESteps.UnpackHashFile)
+        {
+            if(_hashFileRequestOp == null)
+            {
+                string sourcePath = GetBuildinHashFilePath();
+                string destPath = GetCacheHashFilePath();
+                string url = DownloadSystemHelper.ConvertToWWWPath(sourcePath);
+                _hashFileRequestOp = new UnityWebFileRequestOperation(url, destPath);
+                OperationSystem.StartOperation(_packageName, _hashFileRequestOp);
+            }
+
+            if (_hashFileRequestOp.IsDone == false)
+                return;
+
+            if (_hashFileRequestOp.Status == EOperationStatus.Succeed)
+            {
+                _steps = ESteps.CheckManifestFile;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _hashFileRequestOp.Error;
+            }
+        }
+
+        if (_steps == ESteps.CheckManifestFile)
+        {
+            string manifestFilePath = GetCacheManifestFilePath();
+            if (File.Exists(manifestFilePath))
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Succeed;
+                return;
+            }
+
+            _steps = ESteps.UnpackManifestFile;
+        }
+
+        if (_steps == ESteps.UnpackManifestFile)
+        {
+            if (_manifestFileRequestOp == null)
+            {
+                string sourcePath = GetBuildinManifestFilePath();
+                string destPath = GetCacheManifestFilePath();
+                string url = DownloadSystemHelper.ConvertToWWWPath(sourcePath);
+                _manifestFileRequestOp = new UnityWebFileRequestOperation(url, destPath);
+                OperationSystem.StartOperation(_packageName, _manifestFileRequestOp);
+            }
+
+            if (_manifestFileRequestOp.IsDone == false)
+                return;
+
+            if (_manifestFileRequestOp.Status == EOperationStatus.Succeed)
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Succeed;
+            }
+            else
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = _manifestFileRequestOp.Error;
+            }
+        }
+    }
+    protected override void OnAbort()
+    {
+    }
+
+    private string GetBuildinYooRoot()
+    {
+        return PathUtility.Combine(Application.streamingAssetsPath, YooAssetSettingsData.Setting.DefaultYooFolderName);
+    }
+    private string GetBuildinHashFilePath()
+    {
+        string fileRoot = GetBuildinYooRoot();
+        string fileName = YooAssetSettingsData.GetPackageHashFileName(_packageName, _packageVersion);
+        return PathUtility.Combine(fileRoot, fileName);
+    }
+    private string GetBuildinManifestFilePath()
+    {
+        string fileRoot = GetBuildinYooRoot();
+        string fileName = YooAssetSettingsData.GetManifestBinaryFileName(_packageName, _packageVersion);
+        return PathUtility.Combine(fileRoot, fileName);
+    }
+
+    private string GetCacheYooRoot()
+    {
+        return PathUtility.Combine(UnityEngine.Application.persistentDataPath, YooAssetSettingsData.Setting.DefaultYooFolderName);
+    }
+    private string GetCacheHashFilePath()
+    {
+        string fileRoot = GetCacheYooRoot();
+        string fileName = YooAssetSettingsData.GetPackageHashFileName(_packageName, _packageVersion);
+        return PathUtility.Combine(fileRoot, fileName);
+    }
+    private string GetCacheManifestFilePath()
+    {
+        string fileRoot = GetCacheYooRoot();
+        string fileName = YooAssetSettingsData.GetManifestBinaryFileName(_packageName, _packageVersion);
+        return PathUtility.Combine(fileRoot, fileName);
+    }
+}

Assets/YooAsset/Samples~/Extension Sample/Runtime/CopyBuildinManifestOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 41ab464f315df234fb40b0c24e97ee23
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: